Originally Posted by memekmek
I get this so error so many times with this device. In my opinion sprint spark is a huge downgrade. The data is worse, the signal is weaker, I'm constantly losing data, and one of the biggest downgrades is no data during a phone call which is essential for me. Seriously, I think the iphone 4 can still do that.
These DEFINITELY are defective devices. I know because I went through the process.
I ordered the Harman Kardon edition, immediately after receiving I put a glass screen protector and case on. After 5 minutes, It would not connect AT ALL to 3g, getting your same exact error message. I also could not place any phone calls, receiving another attached error message. Texts would come almosy exactly 1 1/2 hours after being sent by the sender.
I switched back to my M7 and reception worked fine (lol). After 2 days of troubleshooting, Sprint ordered me a new M8. After activating the newest One, it immediately connected to 3g, and calls and texts work normally. It is extremely fast switching back and forth between 3g and voice. Signal is the same or better than my M7. Just be careful when all your play apps auto install, 3g coverage in my area couldnt handle it and I thought it was broken again. After letting them install over wifi, speed tests work, browser works, etc
The defective M8 still receives your error message and the one attached. It's going back in a return kit. Hope this helps.
HTC One M7 (sprint)
Nexus 7 32gb (2013)
Evo LTE (sprint > Evo 3D (sprint) > Evo 4g (sprint) > Samsung Intercept (VM)
> Htc Hero (sprint) > tmo g1 (tmo)
Nexus 7 32gb (2012) > Nexus 7 16gb (2012)